Biotech Basics: A Plasmid Primer

What are plasmids?  In 1952, Nobel Prize Winner Joshua Lederberg introduced the term ‘plasmid’, a double-stranded, circular DNA molecule that naturally exists in bacterial cells and some eukaryotes (Fig. 1). Plasmids have been used by molecular biologists to study, analyze,…

Teaching Genetic Diversity using Forensic Science

Explore genetic diversity with a cutting edge forensic science experiment! Your students become crime scene investigators as they analyze biological evidence using DNA fingerprinting, a technique that identifies people via genetic differences called polymorphisms. Gel electrophoresis is used to create…